Windmill



3 Sheets-Sheer. Y1.

' J. M. BARNES.

Windmill.

No. 223,465. Patented Jan. i3, Isso.

`3 Sheets-Sheep?. Y J. M. BARNES. f Windmill.

No. 223,465. Patented Jan. 13, 1880.

ILPTERS. PHOTO-LITHOGRAPHER, WASHINGTONY D C4 3 Sheets-Sheen 3.

Patented Jan. 13, |880.

Windmill.'

J.'M.BARNES.

u. versus, pnm'ournoumpusn. msmumpn. u. c.

' UNITED STATES PATENT OEEICE.

JOHN M. BARNES, OF WAOOUSTA, ASSIGNOR OF ONE-HALF OF HIS RIGHT TO WESLEYS. PALMER, OF LANSING, MICHIGAN..

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 223,465, dated January13, 1880.

` Application filed ovember 1, 1879.

To all whom it may concern:

Be it known that I, JOHN M. BARNES, of Wacousta, in the county ofClinton and State of Michigan, have invented certain new and usefulImprovements in Windmills; and I do hereby declare the following to be afull, clear, and exact description thereof, reference being had to theaccompanying drawings, making part of this specification, and in which-Figures l and 2 are perspective views of a Windmill with my improvementsattached. Fig. 3 isa vertical section of same.

My invention relates to that class of wind mills wherein theface-pressure automatically controls the pitch of the blades; and it consists in sundry details of construction, as herein after morespecifically describedan d claimed. To enable others skilled in the artto make and use my invention, I' will proceed to describe the exactmanner in which I have carried it out.

In the drawings, Arepresents the base, and B B the vertical supports,connected together by metallic ring brackets or plates b b', through andupon which the turn-table O is mounted, it being secured from verticalmovement by means of the flanges and the set-screw c2.

D represents the crank-shaft, near one end of which is mounted thewind-wheel E, said shaft beingjournaled in suitable bearings cc', formedon the sides of the turn table, the bearing c being extended outward toform a bearing, c3, upon which is secured the vane F.

d represents a rod forming a pivoted oonnection between the crank-shaftD and the vertical shaft G, which passes down through the turn-table.This shaft G is made in two sections, g g', connected together by aswiveljoint or ball-coupling, g2, the lower section be 40 ing madesquare and passing through a square hole in the cross-plate b2, thuspermitting a -free vertical movement of the shaft G and a revolvingmovement of the upper section, g, as the turntable is revolved, turningthe wind- Wheel always in the proper direction to the wind.

H represents a circular disk provided with a series of grooves, h, onits outer face, in which the inner ends of the radial arms 7i aresecured, and to said arms are rigidly secured the stationary inner andouter annular rims,

h2 h3, in which the wind or fan bladesz are pivoted. The upper and innerends of said fan-blades are also pivoted to the outer movable annularrim, 1l. Two of the wind or fan- 55 blades, directly opposite eachother, are provided with crank-arms .7 j on their inner ends, which areconnected, by rods la lo, with movable levers and collar k', looselymounted on the shaft D. Y 6o L represents an elbow forked -arm lever,pivoted in the upper end of the curved uprights l Z, the forked arm ofsaid lever engaging with an annular slot in an independent slidinghub,g/, on shaft D, the long arm or free end of the lever being providedwith an adjustable weight, Z', secured in any desired po sition uponsaid arm by a set-screw, l2.

M represents a cord having one endse cured to a lug, m, on the forked,`arm of lever 7o L, and passing over a pulley, m', and thence downthrough the turn-table and through the lower section, g', of the shaftG, said cord being for the purpose of throwing the mill out of gear. l

N represents a series of short brace-rods rigidly secured at their outerends to near the center of the radial arms h', and their inner endssecured to an adjustable collar, n,mount ed on the end of the shaft D.

By my improved construction of mill different velocities of wind willnot affect the motion ofthe wind-wheel, and the wind, striking the fansat an angle, straightens them so as to cut the wind, and this operatesthe weighted lever through the medium of the two wind or fan bladesconnected therewith, keeping a steady motion and working said lever upand down, thus cont-rolling the motion.

l am aware that windmills have heretofore 9o been made wherein the pitchof the blades is automatically controlled by means of the entire wheelmovingon the shaft and provided with connecting-levers to raise aweight.

I am also aware that wind-wheels have heretofore been made wherein anindependent sliding hub has been given a torsional movement around theshaft by means of the face-press ure and said independent hubraisingaweight as the blades open for relief from the faceroo pressure,and hence I do not broadly claim either the controlling the pitch by thefacepressure or controlling the pitch by an inde-y lever-arms K',sliding longitudinally on the pendent hub moving on the shaft; but,shaft, in combination with the crank-armsjj Having thus described myinvention, what pivoted blades 'i Q), movable rim i', and Xed I claim asnew, and desire to secure by Letrims h2 and h3, all constructed,arranged, and

5 ters Patent, isoperated as set forth.

In a Wind-wheel having the pitch of the blades automatically controlledby the face- JOHN M'. BARNES' pressure, the independent hub y, slidinglongi- Witnesses: tudinally ou the main shaft, and engaging H. J.PATTERSON, to with a Weighted lever, L, and the independent W. S.PALMER.

